Affordable Access

Scaling and universality in the optics of disordered exciton chains.

Authors
  • Klugkist, J A
  • Malyshev, V A
  • Knoester, J
Type
Published Article
Journal
Physical review letters
Publication Date
May 30, 2008
Volume
100
Issue
21
Pages
216403–216403
Identifiers
PMID: 18518623
Source
Medline
License
Unknown

Abstract

The joint probability distribution of exciton energies and transition dipole moments determines a variety of optical observables in disordered exciton systems. We demonstrate numerically that this distribution obeys a one-parameter scaling, originating from the fact that both the energy and the dipole moment are determined by the number of coherently bound molecules. A universal underlying distribution is found, which is identical for uncorrelated Gaussian disorder in the molecular transition energies or in the intermolecular transfer interactions. The universality breaks down for disorder in the transfer interactions resulting from variations in the molecular positions. We suggest the possibility to probe the joint distribution by means of single-molecule spectroscopy.

Report this publication

Statistics

Seen <100 times